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Patented Aplnl', 1883.

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J.T,BRUBN.

EXTENSION GHANDELIER.

(No Model.)

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l UNITED STATES PATENT EETOE.

JOHN T. ERUEN, OF BROOKLYN, AssieNOn To WILLIAM F. WARE, on NEW YORK, N. Y.

EXTENSION-CHANDELI ER.

SPECIFICATION forming part of Letters Patent No. 276,130, dated April 17', 1883.

Application tiled March 9, 1883.

To all whom it may concern:

Be it known that I, JOHN T. BRUEN, a citizen ot' the United States, residing at Brooklyn, in the county of Kings and State ot' New York, have invented certain new and useful Improvements in Extension Chandeliers, ot' which the following is a full, clear, and exact description.

The object of this invention is to produce 1c an extension-chandelier or drop-light which can be cheaply made, and will be strong and durable, simple in its construction and operation, and adapted to be easily raised or lowered to bring the illuminating devices carried by it within convenient distances for use.

My invention consists in the combination of a stationary or non-extensible tube, a stationary rack or indented bar, an extensible tube, and a vertical rod oli'set at its lower 2o end and wedge-'shaped at its upper end, whereby the lower end ofthe rod is adapted to enter and be xed in a central opening in thc shank ot' a movable button, and-its upper end bears against and is adapted, whenv said but- 2 5 ton is pressed upwardly, to actuate a pivoted catch or locking device to release said catch from engagement with the rack or indented har and permit the movement of the extensible tube, and to cause said catch to interlock 3o with the rack or indented bar under an impulse from a spring when the pressure on the button is released; and in the detailsot' construction, all as hereinafter fully set forth.

In the accompanying drawings,in the sev- 3 5 eral figures of which similarletters ot' reference designate like parts, Figure l is a central vertical section of the tubular portion of a chandelier embodying my improvement. Fig. 2 is a side view and vertical section of the upper 4o part ofthe tubular portion; and Fig. 3 is a perspective view,in detaihof the catch or locking device.

A designates a stationary tube, screwedinto a pipe or nipple, a, lixed to a yoke, B, carrying the spring-drum 0,011 which a cord, chain,

or strap, b, is wound.

D designates au extensible tube, itted within the tube A, and adapted to slide up and down within the tube A, whereby it may be 5o adjusted to bring the illuminating devices,

(No m odel.)

which may be suspended therefrom by suita ble means, at the desired position for use.

E designates a rack or indented bar liked to and depending from a collar, d, which forms the rack-head held between the end of yoke and top of stationary tube. This rack E is provided with a series of teeth or cogs, c, in one ot' its edges, and is provided at its lower end with a buffer, c, which acts as a guide to the rack, and also serves to terminate the exten- 6o sion ot' the tube D, as will hereinafter appear.

F designates a vertical push-rod, oiset near its lower end, whereby it may be screwed into a central opening in the shank of a button or push-piece,f, as clearly shown in Fig. l. The 6g upper end ot' this rod F is wedge-shaped, as shown by dotted lines in Fig. 3, to actuatc a pivoted catch or locking device whereby the movement of the tube D is controlled. The rod F is inserted through an opening in the 7o buffer e, and extends upwardly along the smooth edge ofthe rack E, the buffer serving also asa guide t0 the rod. This catch or locking device consists of two camshaped tlat sides, G G', connected by two cross-pieces, f/ 75 y', of a length sufticient to hold the partsGG' far enough apart to permit the free passage ot' the' rack E between them. The cross-piece g is square cut and ot' a diameter sut'ciently small to permit said piece g to' enter the in- So dentations in the rack E between the teeth c, and the cross-piece g is rounded of to facili# tate the disengagement ot the cross-piece gv withl the rack E when the wedge-shaped e'ud' ot' this rod F is brought to bear against said S5 piece g.

H designates an annular ring fitted snugly into the tube D, and provided with two prongs or ribs, h h. The prong h is longitudinally secured to the tube D, and is straddled by the 9o parts G G ot` the catch, which are pivoted thereto, as shown at t', Fig. 3, and is of a slightly greater thickness than the rack, whereby it serves as a guide for the same and prevents any lateral play ofthe rack. The prong hf is offset to permit the free play ot the catch or locking device, and has attached to it a spring, j, which bears against a stud, K, on the part G. The suspending-cord b passes through an opening in the annular ring'H, roo

and is fixed to the upper end of the tube D, as shown at l, Fig. 2,- the other end being tixed to the spring-drum C, and the cord passing over an idler 4or loose wheel, m, grooved to receive it, and hung on a pin fixed to two projections, n, on the yoke B, whereby it is guided as it is wound on or un wound from the drum C.

I designates a swivel-buckle attached to the yoke B, by which the chandelier may be suspended from a hook or like device. o designates a knob snugly fitted into the lower end of the tube D, and secured thereto by a pin, o', or like device. This knob is bored to admit the passage ofthe push-rod F through it, and has a central' recess to receive a spring, p,which is spirally coiled around the push-rod and bears against the shank of the buttonf, which is screwed onto the end of the push-rod.

The operation is asfollows: To disengage the cross-piece g and rack E, press upon the button f, which in turn forces the wedge-shaped end of the rod F between the smooth edge of the rack and the rounded cross-piece g', thereby moving the parts G G' and liftin g the cross-piece g clear of the teeth b. The tube D may then be raised or lowered, as may be desired. When the pressure is taken o' the button fthe rod F is carried downwardly and out of contactwith the cross-piece g' by the action of the spring p on the buttonf, and the crosspeceg enters one ot' the indeutations between the teeth c under an impulse from the spring j, and the chandelier is locked and held stationary at the desired position. The downward pull to extend the tube D unwinds the suspending-cord b from the drum O, and when the tube is pushed upwardly the spring within the drum C causes the cord to be rewound upon said drum, and thus a proper degree of tension on the cord is always secured.

It will be seen that the extension ot" the tube D must stop when the buffer e comes in contact with the catch G G', as the buii'er e is too large to pass through the opening between the parts G G'.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of a stationary or nonextensible tube depending from a pipe or nipple fixed tothe yoke carrying the spring-drum,

a stationary rack or indented bar centrally fixed in said stationary tube, an extensible tube fitted within said stationary tube and adapted to slide therein, and a suspendingcord, one end of which is lixed to the spring-drum and the other to the extensibletube, with a catch or locking device pivoted within said extensible tube, and adapted to be disengaged from the rack by said rod and engaged with said rack by aspring, substantially as herein shown and described.

2. The combination of a stationary or nonextensible tube, a stationary rack or indented bar, an extensible tube, suspending-cord, and vertical rod, with a locking device pivoted to the prong h of an annular ring, H, fixed to and-adapted to move with the tube D, and bearing against a spring,j, whereby the extensible tube is locked by the action of said spring and released by the action of said ver` tical rod, substantially as herein shown and described.

3. The combination, in a chandelier yhaving a stationary or non-extensible tube, a stationary rack or indented bar,an extensible tube, suspending-cord, and spring-drum, of the wedgeshaped vertical rod F, with the catch or locking device G G', pivoted to the prong h, and provided with cross-pieces gg', and the spring j, fixed to the prong h', and bearing againsta stud, k, whereby the piece g is engaged with stud k, substantially as herein shown and described, for the purposes set forth.

-In testimony whereof I have hereunto set my hand this 6th day of March, A. D. 1883. JOHN T. BRUEN. Witnesses:

ARTHUR C. WEBB, HERBERT SoUTHRUoK. 

